CN112370917A - VOCs industrial waste gas treatment system - Google Patents
VOCs industrial waste gas treatment system Download PDFInfo
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- CN112370917A CN112370917A CN202011189125.5A CN202011189125A CN112370917A CN 112370917 A CN112370917 A CN 112370917A CN 202011189125 A CN202011189125 A CN 202011189125A CN 112370917 A CN112370917 A CN 112370917A
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- 239000007789 gas Substances 0.000 title claims abstract description 34
- 239000002440 industrial waste Substances 0.000 title claims abstract description 30
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000000428 dust Substances 0.000 claims abstract description 54
- 238000000746 purification Methods 0.000 claims abstract description 46
- 239000007921 spray Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 45
- 239000010802 sludge Substances 0.000 claims description 45
- 238000011084 recovery Methods 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 description 25
- 238000001914 filtration Methods 0.000 description 23
- 239000002245 particle Substances 0.000 description 20
- 239000010865 sewage Substances 0.000 description 12
- 239000012535 impurity Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000003595 mist Substances 0.000 description 7
- 239000013618 particulate matter Substances 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 238000006303 photolysis reaction Methods 0.000 description 4
- 239000008213 purified water Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
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- 231100000719 pollutant Toxicity 0.000 description 3
- 210000001138 tear Anatomy 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 238000007254 oxidation reaction Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010926 purge Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/601—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by clearness or turbidity measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
- B01D29/6423—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a translational movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/20—Supplementary heating arrangements using electric energy
- F23G2204/201—Plasma
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a VOCs industrial waste gas treatment system, which comprises a cyclone dust collector, an electromagnetic valve, a gas-liquid separator, an explosion-proof flame arrester, an induced draft fan and a high-temperature plasma burner, wherein one end of the cyclone dust collector is sequentially connected with the gas-liquid separator, the explosion-proof flame arrester, the induced draft fan and the high-temperature plasma burner through pipelines; the middle positions of the cyclone dust collector and the gas-liquid separator are connected with a secondary dust removing mechanism through a pipeline; the secondary dust removal mechanism comprises a cylinder, a spray pipe, an air outlet, a first water inlet, a return pipe, a purification mechanism, an air inlet pipe and an air inlet; the bottom of the outer circular surface of the cylinder body is fixedly connected with an air inlet. According to the invention, the secondary dust removal mechanism is arranged and matched with the cyclone dust collector to effectively filter the particulate matters in the industrial waste gas, the cyclone dust collector can remove the particulate matters with larger diameters, the secondary dust removal mechanism can filter the particulate matters with small diameters, and the secondary dust removal mechanism does not need to be cleaned frequently by manpower, so that the labor intensity of workers is reduced, and the use is convenient.
Description
Technical Field
The invention relates to the technical field of waste gas treatment equipment, in particular to a VOCs industrial waste gas treatment system.
Background
Volatile Organic Compounds (VOCs) are important precursors for forming secondary pollutants such as fine particulate matters (PM2.5) and ozone and further cause atmospheric environmental problems such as dust haze and photochemical smog, with the rapid development of industrialization and urbanization in China and the continuous increase of energy consumption, regional composite air pollution characterized by PM2.5 and O3 is increasingly prominent, the frequency of the phenomenon of heavy air pollution in a region appearing in a large range at the same time is increased increasingly, the sustainable development of social economy is severely restricted, and the health of people is threatened.
The industrial VOCs purification equipment usually adopts an integral combined structure of primary filtration, photolysis (or plasma) and photocatalytic oxidation to treat VOCs, and a primary filtration module is used for intercepting and filtering particulate matters, dust, oil mist and the like in collected waste gas; and then the VOCs purification module treats the separated waste gas, decomposes pollutants by adopting the combination of photolysis (or plasma) and photocatalysis, and finally changes the pollutants into small molecules, carbon dioxide and water to be discharged.
The prior patent (publication number: CN207805342U) discloses an industrial VOCs waste gas treatment system, which comprises an air inlet (1) and an air outlet (2), wherein the treatment system further comprises a purification device (3), and the purification device (3) comprises a primary effect filtering module (31), a photolysis module (32), a photocatalytic module (33) and an ozone removal module (34) which are sequentially arranged along the air channel direction; the primary filter module (31) links to each other with air intake (1), remove ozone module (34) and link to each other with air outlet (2), the utility model discloses a primary filter module + photodissociation module + photocatalytic oxidation module + composite treatment structure of removing ozone module can control the emission of industry VOCs and ozone effectively, reaches national emission standard and local emission standard.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: 1. in the prior art, the primary filter module is used for filtering particulate matters in VOCs industrial waste gas, but aiming at the working procedures of coating and the like with high content of the particulate matters in the industrial waste gas, the characteristic of large amount of the particulate matters exists, the simple primary filter module cannot be used for effectively filtering the particulate matters, and the primary filter module needs to be frequently cleaned and is inconvenient to use; 2. to high temperature VOCs industrial waste gas, among the prior art, do not contain heat recovery unit in the purification treatment procedure, heat energy is lost in gas purification process and after discharging, has caused very big energy waste, is unfavorable for energy-concerving and environment-protective, and in addition, the high temperature flue gas easily causes the damage to clarification plant.
Therefore, the VOCs industrial waste gas treatment system is provided.
Disclosure of Invention
The invention aims to provide a VOCs industrial waste gas treatment system, which can effectively filter particles in industrial waste gas by arranging a secondary dust removal mechanism and matching with a cyclone dust collector, wherein the cyclone dust collector can remove particles with larger diameters, the secondary dust removal mechanism can filter particles with small diameters, the secondary dust removal mechanism does not need to be cleaned frequently by manpower, the labor intensity of workers is reduced, the use is convenient, the heat recovery mechanism can recover heat in the industrial waste gas, the waste of energy is avoided, the energy conservation and emission reduction are facilitated, meanwhile, the damage of high-temperature smoke to purification equipment is prevented, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a VOCs industrial waste gas treatment system comprises a cyclone dust collector and an electromagnetic valve, wherein one end of the cyclone dust collector is sequentially connected with a gas-liquid separator, an explosion-proof flame arrester, an induced draft fan and a high-temperature plasma incinerator through pipelines; the middle positions of the cyclone dust collector and the gas-liquid separator are connected with a secondary dust removing mechanism through a pipeline; the secondary dust removal mechanism comprises a cylinder, a spray pipe, an air outlet, a first water inlet, a return pipe, a purification mechanism, an air inlet pipe and an air inlet; the bottom of the outer circular surface of the cylinder body is fixedly connected with an air inlet; one end of the cylinder is fixedly connected with the cyclone dust collector through an air inlet; one end of the air inlet extends into the cylinder body and is fixedly connected with an air inlet pipe; the upper end of the interior of the cylinder body is fixedly connected with a spray pipe; one end of the spray pipe extends to the outside of the cylinder body and is fixedly connected with a first water inlet; the upper end of the cylinder body is provided with an air outlet; the lower end of the cylinder body is fixedly connected with a purification mechanism; one end of the purification mechanism is fixedly connected with a return pipe and is communicated with the first water inlet through the return pipe;
the purification mechanism comprises a shell, a water pump, a mud guide plate, a mud discharge port, a sludge pump, a cleaning mechanism, a filter screen and a turbidity sensor; the shell is fixedly arranged at the lower end of the cylinder body; a sludge pump is arranged at one end inside the shell; a sludge discharge port is formed in the position, corresponding to the sludge pump, of the outer circular surface of the shell; a sludge guide plate is fixedly connected to one side of the interior of the shell, which is close to the sludge pump; the upper end of the mud guide plate is connected with a filter screen through threads; the upper end of the mud guide plate is connected with a cleaning mechanism in a penetrating way at a position close to the filter screen; a water pump is arranged at the bottom of the other end in the shell; a turbidity sensor is arranged at a position close to the upper part of the water pump in the shell;
a heat energy recovery mechanism is fixedly connected to the upper position of the inner part of the cylinder body, which is close to the air inlet pipe; the heat energy recovery mechanism comprises a second water inlet, a sealing mechanism, a main flow pipe, an auxiliary flow pipe, a water outlet and a connecting pipe; the auxiliary flow pipe is fixedly arranged in the cylinder body at a position close to the upper part of the air inlet pipe; the upper end and the lower end of the auxiliary pipe are symmetrically provided with two main flow pipes; one end of one of the main flow pipes extends to the outside of the cylinder body and is fixedly connected with a second water inlet; one end of the other main flow pipe extends to the outside of the cylinder and is fixedly connected with a water outlet; and the side surfaces of the second water inlet and the water outlet are connected with sealing mechanisms in a sleeved mode through threads.
In the prior art, the primary filtering module is used for filtering particles in VOCs industrial waste gas, but aiming at the working procedures of coating and the like with high content of industrial waste gas particles, the characteristic of large amount of particles exists, the simple primary filtering module cannot be used for effectively filtering the particles, and the primary filtering module needs to be frequently cleaned, so that the use is inconvenient. The sewage falls into the bottom purification mechanism for purification, the sewage is firstly filtered through the filter screen during purification, the water pump pumps the filtered purified water into the first water inlet through the return pipe for recirculation, the filtered sludge is deposited to the position near the sludge pump through the sludge guide plate and is discharged by the sludge pump, and the cyclone dust collector is matched with the secondary dust removal mechanism to effectively filter particles in the waste gas; aiming at high-temperature VOCs industrial waste gas, in the prior art, a heat energy recovery device is not contained in a purification treatment procedure, heat energy is lost in a gas purification process and after the heat energy is discharged, great energy waste is caused, energy conservation and environmental protection are not facilitated, in addition, high-temperature flue gas easily causes damage to purification equipment, through the heat energy recovery device, a low-temperature heat exchange medium enters a main flow pipe, a connecting pipe and an auxiliary flow pipe through a second water inlet and is discharged from a water outlet, and the high-temperature waste gas is contacted with the auxiliary flow pipe to exchange heat when passing through a heat energy recovery mechanism, so that the heat energy in the waste gas can be recovered, the waste of the heat energy is avoided, the energy conservation and the emission reduction are facilitated, and meanwhile, the damage to.
Preferably, the cleaning mechanism comprises a connecting mechanism, a telescopic rod and a brush roll; the connecting mechanism is arranged at the upper end of the mud guide plate; the mud guide plate is fixedly connected with a telescopic rod through a connecting mechanism; the upper end of the telescopic rod is rotatably connected with a brush roller.
The cleaning mechanism is arranged, the telescopic rod can drive the brush roll to move up and down, the brush roll is used for cleaning the surface of the filter screen, the automation degree of the cleaning mechanism is improved, the labor intensity of workers is reduced, and the cleaning mechanism is convenient to use.
Preferably, the connecting mechanism comprises a connecting thread, a through hole, a first sealing ring and a limiting block; the outer circular surface of the limiting block is provided with connecting threads; the limiting block is fixedly connected inside the mud guide plate through a connecting thread; the upper end of the limiting block is provided with a through hole; the telescopic rod penetrates through the limiting block through the through hole; the stopper is provided with first sealing washer with the hookup location of telescopic link, first sealing washer is the component of a ceramic material.
The during operation, the telescopic link gets into particulate matter impurity with leading mud plate hookup location easily, wear and tear to the telescopic link, and then shorten the life of telescopic link, impurity is easy directly to get into the water purification district through connecting the crack and follows up simultaneously, cause the damage to equipment, through setting up coupling mechanism, the stopper is provided with first sealing washer with the hookup location of telescopic link, can play sealed effect, prevent that the impurity particulate matter from getting into, the life of telescopic link has been prolonged, impurity is easy directly to get into the water purification district through connecting the crack and follows up simultaneously and has been solved, cause the problem of damage to equipment, the stopper carries out fixed connection through connecting thread and leading mud plate, be convenient for change it when first sealing washer wearing and tearing.
Preferably, the sealing mechanism comprises a screwing cap, a second sealing ring, a clamping mechanism and a fixing groove; the screwing cap is connected to the outer circular surface of the second water inlet in a sleeved mode through threads; a clamping mechanism is arranged on the side surface of one end of the screwing cap; the screwing cap is fixedly provided with a second sealing ring through a clamping mechanism; and a fixing groove is embedded in the position, corresponding to the second sealing ring, of the outer circular surface of the cylinder body.
When the device works, the second water inlet is fixedly connected with the barrel body usually in a welding mode, after the device is used for a long time, a connecting position of the second water inlet and the barrel body is easy to crack, so that cooling medium leaks, and the device cannot work normally.
Preferably, the clamping mechanism comprises a mounting groove, a mounting plate, a spring and a pressing plate; a mounting groove is formed in the side surface of one end of the screwing cap; the inner wall of the mounting groove is fixedly connected with a mounting plate; a plurality of springs are uniformly arranged on the inner circular surface of the mounting plate; one end of the spring is fixedly connected with an extrusion plate; the mounting plate and the extrusion plate are all members with annular structures.
When the sealing device works, the sealing effect is improved by arranging the second sealing ring, the cooling medium is prevented from leaking, but after the second sealing ring is used for a long time, the second sealing ring needs to be replaced due to abrasion, the sealing ring in the prior art is usually directly bonded and fixed, and is difficult to detach.
Preferably, the mud guide plate is a member of a quarter-arc mechanism, the bottom end of the mud guide plate is fixedly arranged at a position, close to one side of the sludge pump, of the bottom in the shell, and the mud guide plate is a stainless steel member.
During operation, the inside sewage of casing can evenly fall into the casing bottom through deposiing, and when the sludge pump extracted, corner mud was difficult to the extraction, through setting up the mud guide plate of arc structure, can concentrate the inside particulate matter impurity of casing and deposit near sludge pump, makes things convenient for sludge pump to the extraction of mud.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention filters large particles in industrial waste gas by arranging a secondary dust removing mechanism, and small particles which cannot be filtered enter the secondary dust removing mechanism for filtering, when the secondary dust removing mechanism works, the waste gas enters an air inlet pipe through an air inlet and is sprayed into the barrel through the air inlet pipe, the waste gas is subjected to heat exchange through a heat energy recovery mechanism and then is mixed with water mist sprayed out from a spray pipe, the particles and the water mist are combined and condensed to form a larger volume and fall down, so that the effect of filtering fine particles is achieved, sewage falls into a bottom purification mechanism for purification, the sewage is firstly filtered through a filter screen, a water pump pumps purified water after the filtration into a first water inlet through a return pipe for recirculation, filtered sludge is precipitated to the vicinity of a sludge pump through a sludge guide plate and is discharged by the sludge pump, and the cyclone dust remover is matched with the secondary dust removing mechanism, can carry out effective filtration to the particulate matter in the waste gas.
2. According to the invention, by arranging the heat energy recovery device, the low-temperature heat exchange medium enters the main flow pipe, the connecting pipe and the auxiliary flow pipe through the second water inlet and is discharged from the water outlet, and the high-temperature waste gas is contacted with the auxiliary flow pipe for heat exchange when passing through the heat energy recovery mechanism, so that the heat energy in the waste gas can be recovered, the waste of the heat energy is avoided, the energy conservation and emission reduction are facilitated, and meanwhile, the damage of the high-temperature flue gas to the purification equipment is also prevented.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall structural view of the secondary dust removing mechanism of the present invention;
FIG. 3 is a cross-sectional view of the secondary dust removing mechanism of the present invention;
FIG. 4 is a structural view of the purge mechanism of the present invention;
FIG. 5 is a cross-sectional view of the heat recovery mechanism of the present invention;
FIG. 6 is a top view of the heat recovery mechanism of the present invention;
FIG. 7 is a structural view of the cleaning mechanism of the present invention;
FIG. 8 is a structural view of the coupling mechanism of the present invention;
FIG. 9 is a structural view of the sealing mechanism of the present invention;
FIG. 10 is a structural view of the latch mechanism of the present invention.
In the figure: 1. a cyclone dust collector; 2. an electromagnetic valve; 3. a secondary dust removal mechanism; 31. a barrel; 32. a heat energy recovery mechanism; 321. a second water inlet; 322. a sealing mechanism; 323. a main flow pipe; 324. a secondary tube; 325. a water outlet; 326. a connecting pipe; 33. a spray tube; 34. an air outlet; 35. a first water inlet; 36. a return pipe; 37. a purification mechanism; 371. a housing; 372. a water pump; 373. a mud guide plate; 374. a sludge discharge port; 375. a sludge pump; 376. a cleaning mechanism; 377. a filter screen; 378. a turbidity sensor; 38. an air inlet pipe; 39. an air inlet; 5. a gas-liquid separator; 6. an explosion-proof flame arrestor; 7. an induced draft fan; 8. a high temperature plasma burner; 9. a connecting mechanism; 91. connecting threads; 92. a through hole; 93. a first seal ring; 94. a limiting block; 10. a telescopic rod; 11. a brush roll; 12. screwing the cap; 13. a second seal ring; 14. a clamping mechanism; 141. mounting grooves; 142. mounting a plate; 143. a spring; 144. a pressing plate; 15. and fixing the grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 10, the present invention provides a technical solution of a system for treating industrial waste gas containing VOCs:
a VOCs industrial waste gas treatment system is shown in figures 1 to 3 and comprises a cyclone dust collector 1 and an electromagnetic valve 2, wherein one end of the cyclone dust collector 1 is sequentially connected with a gas-liquid separator 5, an explosion-proof flame arrester 6, an induced draft fan 7 and a high-temperature plasma incinerator 8 through pipelines; the middle positions of the cyclone dust collector 1 and the gas-liquid separator 5 are connected with a secondary dust removing mechanism 3 through a pipeline; the secondary dust removing mechanism 3 comprises a cylinder 31, a spraying pipe 33, an air outlet 34, a first water inlet 35, a return pipe 36, a purifying mechanism 37, an air inlet pipe 38 and an air inlet 39; the bottom of the outer circular surface of the cylinder body 31 is fixedly connected with an air inlet 39; one end of the cylinder 31 is fixedly connected with the cyclone dust collector 1 through an air inlet 39; one end of the air inlet 39 extends into the cylinder 31 and is fixedly connected with an air inlet pipe 38; the upper end of the interior of the cylinder body 31 is fixedly connected with a spray pipe 33; one end of the spray pipe 33 extends to the outside of the cylinder 31 and is fixedly connected with a first water inlet 35; the upper end of the cylinder 31 is provided with an air outlet 34; the lower end of the cylinder 31 is fixedly connected with a purification mechanism 37; one end of the purification mechanism 37 is fixedly connected with a return pipe 36 and is communicated with the first water inlet 35 through the return pipe 36;
as shown in fig. 4, the purification mechanism 37 includes a housing 371, a water pump 372, a mud guide 373, a mud discharge port 374, a sludge pump 375, a cleaning mechanism 376, a filter screen 377, and a turbidity sensor 378, wherein the water pump 372 may be selected from the following types: WQD-6 type; the selectable models of the sludge pump 375 are: a WQ form; optional models for turbidity sensor 378 are: TS-300B type; the shell 371 is fixedly arranged at the lower end of the cylinder 31; a sludge pump 375 is arranged at one end inside the shell 371; a sludge discharge opening 374 is formed in the position, corresponding to the sludge pump 375, of the outer circular surface of the shell 371; a sludge guide plate 373 is fixedly connected to one side of the interior of the shell 371, which is close to the sludge pump 375; the upper end of the mud guide plate 373 is connected with a filter screen 377 through threads; the upper end of the mud guide plate 373 close to the filter screen 377 is connected with a cleaning mechanism 376 in a penetrating way; a water pump 372 is arranged at the bottom of the other end in the shell 371; a turbidity sensor 378 is arranged in the shell 371 and close to the upper part of the water pump 372;
as shown in fig. 5 to 6, a heat energy recovery mechanism 32 is fixedly connected to the inside of the cylinder 31 at a position above the air inlet pipe 38; the heat energy recovery mechanism 32 comprises a second water inlet 321, a sealing mechanism 322, a main flow pipe 323, an auxiliary flow pipe 324, a water outlet 325 and a connecting pipe 326; the secondary pipe 324 is fixedly mounted inside the cylinder 31 at a position above the air inlet pipe 38; two main flow pipes 323 are symmetrically arranged at the upper end and the lower end of the auxiliary flow pipe 324; one end of one of the main flow pipes 323 extends to the outside of the cylinder 31 and is fixedly connected with a second water inlet 321; one end of the other main flow pipe 323 extends to the outside of the cylinder 31 and is fixedly connected with a water outlet 325; the side surfaces of the second water inlet 321 and the second water outlet 325 are connected with a sealing mechanism 322 through threaded sleeves.
In the prior art, the primary filtering module is used for filtering particles in VOCs industrial waste gas, but aiming at the working procedures of coating and the like with high content of industrial waste gas particles, the characteristic of large amount of particles exists, the simple primary filtering module cannot be used for effectively filtering the particles, and the primary filtering module needs to be frequently cleaned, so that the use is inconvenient, the invention utilizes the secondary dust removing mechanism 3, utilizes the cyclone dust collector 1 to filter large particles in the industrial waste gas, small particles which cannot be filtered enter the secondary dust removing mechanism 3 for filtering, when the secondary dust removing mechanism 3 works, the waste gas enters the air inlet pipe 38 through the air inlet 39 and is sprayed into the cylinder 31 through the air inlet pipe 38, the waste gas is mixed with water mist sprayed out of the spray pipe 33 after heat exchange through the heat energy recovery mechanism 32, the particles are combined with the water mist and condensed to form a larger volume and fall down, thereby achieving the effect of filtering fine particles, the sewage falls into the bottom purification mechanism 37 for purification, the sewage is firstly filtered through the filter screen 377 during purification, the water pump 372 pumps the filtered purified water into the first water inlet 35 through the return pipe 36 for recirculation, the filtered sludge is precipitated to the vicinity of the sludge pump 375 through the sludge guide plate 373 and is discharged by the sludge pump 375, and the cyclone dust collector 1 is matched with the secondary dust removal mechanism 3, so that particles in the waste gas can be effectively filtered; aiming at high-temperature VOCs industrial waste gas, in the prior art, a heat energy recovery mechanism 32 is not contained in a purification treatment program, heat energy is lost in the gas purification process and after the heat energy is discharged, great energy waste is caused, energy conservation and environmental protection are not facilitated, in addition, high-temperature flue gas easily damages purification equipment, through the heat energy recovery mechanism 32, a low-temperature heat exchange medium enters a main flow pipe 323, a connecting pipe 326 and an auxiliary flow pipe 324 through a second water inlet 321 and is discharged from a water outlet 325, and when the high-temperature waste gas passes through the heat energy recovery mechanism 32, the high-temperature waste gas is in contact with the auxiliary flow pipe 324 to exchange heat, the heat energy in the waste gas can be recovered, the waste of the heat energy is avoided, the energy conservation and the emission reduction are facilitated, and meanwhile.
As an embodiment of the present invention, as shown in fig. 7, the cleaning mechanism 376 includes a connecting mechanism 9, a telescopic rod 10, and a brush roller 11; the connecting mechanism 9 is arranged at the upper end of the mud guide plate 373; the mud guide plate 373 is fixedly connected with a telescopic rod 10 through a connecting mechanism 9; the upper end of the telescopic rod 10 is rotatably connected with a brush roller 11; during operation, the purification mechanism 37 filters and purifies sewage through the filter screen 377 so as to be convenient for reuse, after long-time use, the filter screen 377 is easy to block, and the purification effect is reduced.
As an embodiment of the present invention, as shown in fig. 8, the connecting mechanism 9 includes a connecting thread 91, a through hole 92, a first sealing ring 93, and a limiting block 94; the outer circular surface of the limiting block 94 is provided with a connecting thread 91; the limiting block 94 is fixedly connected to the inner part of the mud guide plate 373 through a connecting thread 91; the upper end of the limiting block 94 is provided with a through hole 92; the telescopic rod 10 penetrates through the limiting block 94 through the through hole 92; a first sealing ring 93 is arranged at the connecting position of the limiting block 94 and the telescopic rod 10, and the first sealing ring 93 is a ceramic component; during operation, telescopic link 10 and mud guide plate 373 hookup location get into particulate matter impurity easily, wear and tear telescopic link 10, and then shorten telescopic link 10's life, impurity easily directly passes through the connection crack and gets into the water purification district and follow the damage simultaneously, cause the damage to equipment, through setting up coupling mechanism 9, stopper 94 is provided with first sealing washer 93 with telescopic link 10's hookup location, can play sealed effect, prevent that the impurity particulate matter from getting into, telescopic link 10's life has been prolonged, impurity easily directly passes through the connection crack simultaneously and gets into the water purification district and follow the damage, cause the problem of damage to equipment, stopper 94 carries out fixed connection through connecting thread 91 and mud guide plate 373, be convenient for change it when first sealing washer 93 weares and teares.
As an embodiment of the present invention, as shown in fig. 9, the sealing mechanism 322 includes a screwing cap 12, a second sealing ring 13, a clamping mechanism 14, and a fixing groove 15; the screwing cap 12 is connected to the outer circular surface of the second water inlet 321 through threaded sleeve; a clamping mechanism 14 is arranged on the side surface of one end of the screwing cap 12; the screwing cap 12 is fixedly provided with a second sealing ring 13 through a clamping mechanism 14; a fixing groove 15 is embedded in the position, corresponding to the second sealing ring 13, of the outer circular surface of the cylinder 31; during operation, the second water inlet 321 is fixedly connected with the cylinder 31 usually in a welding mode, after long-time use, a crack is easily generated at the connecting position of the second water inlet 321 and the cylinder 31, so that the cooling medium leaks out, and the device cannot normally operate.
As an embodiment of the present invention, as shown in fig. 10, the clamping mechanism 14 includes a mounting groove 141, a mounting plate 142, a spring 143, and a pressing plate 144; a mounting groove 141 is formed on the side surface of one end of the screwing cap 12; the inner wall of the mounting groove 141 is fixedly connected with a mounting plate 142; a plurality of springs 143 are uniformly arranged on the inner circular surface of the mounting plate 142; one end of the spring 143 is fixedly connected with a squeezing plate 144; the mounting plate 142 and the extrusion plate 144 are both annular structural members; when the sealing device works, the sealing effect is improved by arranging the second sealing ring 13, the cooling medium is prevented from leaking, but after the second sealing ring 13 is used for a long time, the second sealing ring 13 needs to be replaced due to abrasion, the sealing rings in the prior art are usually directly bonded and fixed, and the disassembly is difficult.
As an embodiment of the present invention, as shown in fig. 4, the mud guide 373 is a member of a quarter-arc mechanism, the bottom end of the mud guide 373 is fixedly installed at a side position of the bottom of the housing 371 near the sludge pump 375, and the mud guide 373 is a member made of stainless steel; during operation, the inside sewage of casing 371 evenly falls into casing 371 bottom through deposiing, and when sludge pump 375 extracted, corner mud was difficult to the extraction, through leading mud plate 373 who sets up the arc structure, can concentrate the inside particulate matter impurity of casing 371 and deposit near sludge pump 375, makes things convenient for sludge pump 375 to the extraction of mud.
The using method comprises the following steps: when the invention is used, firstly, industrial waste gas containing VOCs enters the cylinder 31 through the air inlet 39 and the air inlet 38, when the industrial waste gas is high-temperature waste gas, the waste gas is subjected to heat energy recovery through the heat energy recovery mechanism 32, a low-temperature heat exchange medium enters the main flow pipe 323, the connecting pipe 326 and the auxiliary flow pipe 324 through the second water inlet 321 and is discharged from the water outlet 325, when the high-temperature waste gas passes through the heat energy recovery mechanism 32, the high-temperature waste gas is contacted with the auxiliary flow pipe 324 to exchange heat, the waste gas is mixed with water mist sprayed out of the spray pipe 33 after heat exchange, the particles and the water mist are combined and condensed to fall in a larger volume, thereby achieving the effect of filtering fine particles, the sewage falls into the bottom purification mechanism 37 to be purified, when in purification, the sewage is firstly filtered through the filter screen 377, the water pump 372 pumps the purified water after being, filtered sludge is precipitated to the vicinity of a sludge pump 375 through a sludge guide plate 373 and discharged from the sludge pump 375, a cyclone dust collector 1 is matched with a secondary dust removal mechanism 3, particulate matters in waste gas can be effectively filtered, when the device works, a purification mechanism 37 filters and purifies the sewage through a filter screen 377 so as to be convenient for reuse, after the device is used for a long time, the filter screen 377 is easy to block, and the purification effect is reduced, the device is provided with a cleaning mechanism 376, a brush roll 11 can be driven by a telescopic rod 10 to move up and down, the surface of the filter screen 377 is cleaned by the brush roll 11, the automation degree of the purification mechanism 37 is improved, the labor intensity of workers is reduced, the device is convenient to use, the waste gas filtered by impurities is separated from water in the gas through a gas-liquid separator 5 and then enters a high-temperature plasma incinerator 8 for decomposition through an explosion-proof flame arrester 6, is discharged to the atmosphere by an induced draft fan 7.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A VOCs industrial waste gas treatment system comprises a cyclone dust collector (1) and an electromagnetic valve (2), wherein one end of the cyclone dust collector (1) is sequentially connected with a gas-liquid separator (5), an explosion-proof flame arrester (6), an induced draft fan (7) and a high-temperature plasma incinerator (8) through a pipeline; the method is characterized in that: the middle positions of the cyclone dust collector (1) and the gas-liquid separator (5) are connected with a secondary dust removal mechanism (3) through a pipeline; the secondary dust removal mechanism (3) comprises a cylinder (31), a spray pipe (33), an air outlet (34), a first water inlet (35), a return pipe (36), a purification mechanism (37), an air inlet pipe (38) and an air inlet (39); the bottom of the outer circular surface of the cylinder body (31) is fixedly connected with an air inlet (39); one end of the cylinder (31) is fixedly connected with the cyclone dust collector (1) through an air inlet (39); one end of the air inlet (39) extends into the cylinder body (31) and is fixedly connected with an air inlet pipe (38); the upper end of the interior of the cylinder body (31) is fixedly connected with a spray pipe (33); one end of the spray pipe (33) extends to the outside of the cylinder body (31) and is fixedly connected with a first water inlet (35); the upper end of the cylinder body (31) is provided with an air outlet (34); the lower end of the cylinder body (31) is fixedly connected with a purification mechanism (37); one end of the purification mechanism (37) is fixedly connected with a return pipe (36) and is communicated with the first water inlet (35) through the return pipe (36);
the purification mechanism (37) comprises a shell (371), a water pump (372), a mud guide plate (373), a mud discharge port (374), a sludge pump (375), a cleaning mechanism (376), a filter screen (377) and a turbidity sensor (378); the shell (371) is fixedly arranged at the lower end of the cylinder (31); a sludge pump (375) is arranged at one end inside the shell (371); a sludge discharge port (374) is formed in the position, corresponding to the sludge pump (375), of the outer circular surface of the shell (371); a mud guide plate (373) is fixedly connected to one side of the inner part of the shell (371), which is close to the sludge pump (375); the upper end of the mud guide plate (373) is connected with a filter screen (377) through threads; the upper end of the mud guide plate (373) is connected with a cleaning mechanism (376) in a penetrating way at a position close to the filter screen (377); a water pump (372) is arranged at the bottom of the other end in the shell (371); a turbidity sensor (378) is arranged in the shell (371) and close to the upper part of the water pump (372);
a heat energy recovery mechanism (32) is fixedly connected to the upper position of the inner part of the cylinder body (31) close to the air inlet pipe (38); the heat energy recovery mechanism (32) comprises a second water inlet (321), a sealing mechanism (322), a main flow pipe (323), an auxiliary flow pipe (324), a water outlet (325) and a connecting pipe (326); the auxiliary pipe (324) is fixedly arranged at the upper position close to the air inlet pipe (38) in the cylinder body (31); two main flow pipes (323) are symmetrically arranged at the upper end and the lower end of the auxiliary flow pipe (324); one end of one main flow pipe (323) extends to the outside of the cylinder body (31) and is fixedly connected with a second water inlet (321); one end of the other main flow pipe (323) extends to the outside of the cylinder body (31) and is fixedly connected with a water outlet (325); the side surfaces of the second water inlet (321) and the second water outlet (325) are connected with sealing mechanisms (322) through threaded sleeves.
2. A system for treating industrial waste gases containing VOCs according to claim 1, wherein: the cleaning mechanism (376) comprises a connecting mechanism (9), a telescopic rod (10) and a brush roll (11); the connecting mechanism (9) is arranged at the upper end of the mud guide plate (373); the mud guide plate (373) is fixedly connected with a telescopic rod (10) through a connecting mechanism (9); the upper end of the telescopic rod (10) is rotatably connected with a brush roller (11).
3. A system according to claim 2, wherein the system further comprises: the connecting mechanism (9) comprises a connecting thread (91), a through hole (92), a first sealing ring (93) and a limiting block (94); the outer circular surface of the limiting block (94) is provided with a connecting thread (91); the limiting block (94) is fixedly connected to the inner part of the mud guide plate (373) through a connecting thread (91); the upper end of the limiting block (94) is provided with a through hole (92); the telescopic rod (10) penetrates through the limiting block (94) through the through hole (92); the connection position of the limiting block (94) and the telescopic rod (10) is provided with a first sealing ring (93), and the first sealing ring (93) is a component made of ceramic materials.
4. A system for treating industrial waste gases containing VOCs according to claim 1, wherein: the sealing mechanism (322) comprises a screwing cap (12), a second sealing ring (13), a clamping mechanism (14) and a fixing groove (15); the screwing cap (12) is connected to the outer circular surface of the second water inlet (321) in a sleeved mode through threads; a clamping mechanism (14) is arranged on the side surface of one end of the screwing cap (12); the screwing cap (12) is fixedly provided with a second sealing ring (13) through a clamping mechanism (14); and a fixing groove (15) is embedded in the position, corresponding to the second sealing ring (13), of the outer circular surface of the cylinder body (31).
5. A VOCs industrial waste gas treatment system according to claim 4, wherein: the clamping mechanism (14) comprises a mounting groove (141), a mounting plate (142), a spring (143) and a pressing plate (144); a mounting groove (141) is formed in the side surface of one end of the screwing cap (12); the inner wall of the mounting groove (141) is fixedly connected with a mounting plate (142); a plurality of springs (143) are uniformly arranged on the inner circular surface of the mounting plate (142); one end of the spring (143) is fixedly connected with a squeezing plate (144); the mounting plate (142) and the extrusion plate (144) are both annular structural members.
6. A system for treating industrial waste gases containing VOCs according to claim 1, wherein: the mud guide plate (373) is a member of a quarter-arc mechanism, the bottom end of the mud guide plate (373) is fixedly arranged at one side position of the bottom in the shell (371) close to the sludge pump (375), and the mud guide plate (373) is a member made of stainless steel.
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